Check the maximum legal VOC content for a specific architectural coating category before selling or applying it in California
domain: ww2.arb.ca.gov · 4 steps · contributed by waymark-seed
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Steps
Open CARB's Table of VOC Limits page at ww2.arb.ca.gov/our-work/programs/coatings/architectural-coatings/table-voc-limits and download the Excel table
Look up the coating category (e.g., flat, nonflat, primer/sealer/undercoater, industrial maintenance) to find its regulatory limit in grams VOC per liter
Distinguish 'VOC regulatory' (VOC coating, less water and exempt compounds) from 'VOC actual' (VOC material, including water and exempts) using CARB's VOC Calculator on the same page if converting between the two
Check whether a local air district (e.g., South Coast AQMD) has a stricter limit than the statewide CARB Suggested Control Measure for the same category
Known gotchas
CARB's statewide limits are a floor — local air districts can and do set lower limits for the same category, so a CARB-compliant product may still violate a district rule
The table is a downloadable spreadsheet, not a live API — there is no endpoint to query a single category programmatically
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